CN210590381U

CN210590381U - Structure of rear die elastic plate driving sliding block

Info

Publication number: CN210590381U
Application number: CN201921473814.1U
Authority: CN
Inventors: 曾祥波
Original assignee: Tsun Ngai Precise Tooling Suzhou Co ltd
Current assignee: Tsun Ngai Precise Tooling Suzhou Co ltd
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-05-22
Anticipated expiration: 2029-09-06

Abstract

The utility model discloses a structure of back mould diving board drive slider, its characterized in that: the demolding device comprises a half sliding block for realizing demolding of multiple annular rib structures on a circular tube-shaped plastic part, wherein the half sliding block is installed and connected onto a rear die elastic plate, the rear die elastic plate drives the half sliding block to move up and down, the lower end of the rear die elastic plate is installed on the upper surface of a lower fixing plate, one end of an inclined guide pillar which drives the half sliding block to move left and right is fixedly connected with the lower fixing plate, and a delay stop block matched with the half sliding block is further arranged on the lower fixing plate. The utility model has the advantages of simple structure and reasonable design, can accomplish the pipe form that has multiple annular rib structure and mould a drawing of patterns, reduce the maintenance cost of mould.

Description

Structure of rear die elastic plate driving sliding block

Technical Field

The utility model relates to an injection mold technical field, specific structure of back mould diving board drive slider that says so.

Background

For a circular tube-shaped plastic part with a multiple annular rib structure, a traditional mold stripping mechanism comprises a half sliding block and a full-circle pushing block, wherein the half sliding block is driven by a front mold inclined guide post to realize demolding of the multiple annular rib structure, and the full-circle pushing block is driven by a push rod to push the bottom surface of a tube wall to realize ejection of the plastic part. However, in practice, it is found that the inner wall of the plastic part is fully enveloped on the mold core, the wrapping force is large, and after the half sliding block completes the demolding of the multiple annular rib structure, the ejector block is ejected, so that the defects that the bottom surface of the circular tube is often damaged, deformed and even cannot be ejected are often caused, the continuity and the stability of injection molding production are not facilitated, the maintenance cost of the mold is increased, and the service life of the mold is shortened.

Disclosure of Invention

In order to solve the problem, the utility model provides a can accomplish the drawing of patterns of multiple cyclic annular rib structure to ejecting structure of moulding the back mould diving board drive slider of piece smoothly.

In order to achieve the purpose, the utility model discloses a realize through following technical scheme:

the utility model relates to a structure of back mould diving board drive slider, including realizing the half slider of the multiple cyclic annular rib structure drawing of patterns on the pipe-shaped piece of moulding, half slider erection joint on back mould diving board, back mould diving board drives half slider and reciprocates, and the lower extreme of back mould diving board is installed on the upper surface of bottom plate, and the drive is half the one end and the bottom plate of the oblique guide pillar that removes about the slider and is connected fixedly, still is provided with on the bottom plate and half slider complex time delay dog.

The utility model discloses a further improvement lies in: the inclined guide post penetrates through an inclined guide post hole in the half sliding block, and the inclined guide post hole is provided with a clearance distance for the half sliding block to move leftwards in a delayed mode.

The utility model discloses a further improvement lies in: the time delay stop block is in contact with a connecting block fixed on the left side of the half sliding block, and the connecting block is matched with the time delay stop block to generate time delay.

The utility model has the advantages that: in the structure of the utility model, the half slider covers the plastic part in the initial ejection section, and the ejection area is greatly increased, thereby effectively reducing the ejection force born on the unit area, and ensuring the structural integrity, the part taking convenience and the stability of high appearance quality of the ejected plastic part; the structure of the half sliding block driven by the rear die elastic plate is simple, the operation is stable and reliable, the maintenance is convenient, the half sliding block is suitable for high-efficiency automatic injection molding production of a circular tube-shaped thin-wall plastic part product with ribs outside, the maintenance cost of equipment is effectively reduced, and the service life of a die is prolonged.

The utility model has the advantages of simple structure and reasonable design, can accomplish the drawing of patterns of multiple annular rib structure, reduce the maintenance cost of mould.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Wherein: 1-half slide block, 2-inclined guide post, 3-rear die elastic plate, 4-delay stop block and 5-lower fixed plate.

Detailed Description

In order to enhance the understanding of the present invention, the present invention will be described in detail with reference to the following embodiments and the accompanying drawings, wherein the embodiments are only used for explaining the present invention, and do not limit the protection scope of the present invention.

As shown in fig. 1, the utility model relates to a structure of back mould diving board drive slider, including realizing half slider 1 of the multiple cyclic annular rib structure drawing of patterns on the pipe-shaped plastic part, half slider 1 erection joint is on back mould diving board 3, and back mould diving board 3 drives half slider 1 and reciprocates, and the lower extreme of back mould diving board 3 is installed on the upper surface of bottom plate 5, and the one end of the oblique guide pillar 2 that removes about drive half slider 1 is connected fixedly with bottom plate 5, still be provided with on bottom plate 5 with half slider 1 complex time delay dog 4.

The inclined guide post 2 penetrates through an inclined guide post hole in the half sliding block 1, and the inclined guide post hole has a clearance distance for the half sliding block 1 to move leftwards in a delayed mode. The delay stop block 4 is fixed on the left connecting block of the half sliding block 1 and contacts with the left connecting block, and the connecting block is matched with the delay stop block 4 to generate delay.

When the half sliding block is ejected, the rear die elastic plate 3 drives the half sliding block 1 to integrally move upwards, and when the connecting block is in contact with two straight surfaces of the delay stop block 4, the half sliding block 1 cannot be separated left and right and only can wrap a plastic part, so that the plastic part is loosened with a mold core in advance; and (3) continuing ejecting movement, finishing the delay function when the connecting block and the delay stop dog 4 enter the inclined plane for contact, and separating the half sliding block 1 from left to right under the control of the inclined guide pillar 2 to finish the demoulding of the multiple annular rib structure and smoothly eject the plastic part. When the die is closed, under the action of a pull back force, the rear die elastic plate 3 drives the half sliding block 1 to return downwards together, and under the control of the inclined guide post 2 and the protection of the delay stop block 4, the half sliding block 1 smoothly returns to the position and the die closing is completed.

Claims

1. The utility model provides a structure of back mould diving board drive slider which characterized in that: the demolding device comprises a half sliding block (1) for realizing demolding of a multiple annular rib structure on a circular tube-shaped plastic part, wherein the half sliding block (1) is installed and connected onto a rear die elastic plate (3), the rear die elastic plate (3) drives the half sliding block (1) to move up and down, the lower end of the rear die elastic plate (3) is installed on the upper surface of a lower fixing plate (5), one end of an inclined guide pillar (2) which drives the half sliding block (1) to move left and right is fixedly connected with the lower fixing plate (5), and a time delay stop block (4) matched with the half sliding block (1) is further arranged on the lower fixing plate (5).

2. The structure of the rear die elastic plate driving slide block as claimed in claim 1, wherein: the inclined guide post (2) penetrates through an inclined guide post hole in the half sliding block (1), and the inclined guide post hole is provided with a clearance distance for the half sliding block (1) to move leftwards in a delayed mode.

3. The structure of the rear die elastic plate driving slide block as claimed in claim 1, wherein: the delay stop block (4) is in contact with a connecting block fixed on the left side of the half sliding block (1), and the connecting block is matched with the delay stop block to generate delay.